Planetary hours
in Bahía Blanca.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Sunday, 18 October 2026: day of the Sun
- Sunrise
- 06:18
- Sunset
- 19:30
- Next sunrise
- 06:17
A day hour lasts 1h 06m; a night hour, 54 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun06:18 – 07:24
- 2♀︎ Venus07:24 – 08:30
- 3☿︎ Mercury08:30 – 09:36
- 4☽︎ Moon09:36 – 10:42
- 5♄︎ Saturn10:42 – 11:48
- 6♃︎ Jupiter11:48 – 12:54
- 7♂︎ Mars12:54 – 14:00
- 8☉︎ Sun14:00 – 15:06
- 9♀︎ Venus15:06 – 16:12
- 10☿︎ Mercury16:12 – 17:18
- 11☽︎ Moon17:18 – 18:24
- 12♄︎ Saturn18:24 – 19:30
Night
- 1♃︎ Jupiter19:30 – 20:24
- 2♂︎ Mars20:24 – 21:18
- 3☉︎ Sun21:18 – 22:12
- 4♀︎ Venus22:12 – 23:06
- 5☿︎ Mercury23:06 – 23:59
- 6☽︎ Moon23:59 – 00:53
- 7♄︎ Saturn00:53 – 01:47
- 8♃︎ Jupiter01:47 – 02:41
- 9♂︎ Mars02:41 – 03:35
- 10☉︎ Sun03:35 – 04:29
- 11♀︎ Venus04:29 – 05:23
- 12☿︎ Mercury05:23 – 06:17
Other cities · Argentina
Questions
How are the planetary hours calculated in Bahía Blanca?
On Sunday, 18 October 2026, the Sun rises at 06:18 and sets at 19:30: the day lasts 13h 12m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 06:17, lasts 10h 46m: twelve night hours of 54 min.
Which planet rules the first hour that day?
The Sun, from 06:18 to 07:24: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.